Here's a walkthrough of me going through Metroid: Zero Mission for Game Boy Advance. I am going for 100% pickups, doing it in Hard Mode, and am trying to beat it under two hours.

Since I am going through Hard Mode, the pickups are halved (one Super Missile per tank, half energy per tank, etc.). Also, even though I have the sequential Main Item list, I will be doing some sequence breaking for a faster time.

Samus defeats Kraid, the first guardian of Tourian. After defeating it, she gets the Speed Booster, and heads on to Norfair.